FIGURE 4: Example of the Corrosion Index Showing the Likelihood that Towers will
Corrode because of Emissions from Nearby Power Station
that affect the degradation of steel,
zinc and organic coatings on all aboveground steelwork. This includes temperature; humidity; time of wetness;
pollution in the form of air-borne sulfur
dioxide; location in altitude; proximity
to sea, lakes, reservoirs, rivers, minor
and major roads; and history, including
installation date, coating records and
maintenance history. The model is then
used to calculate the long-term risk
of the towers and display them color
coded individually on a map within the
dashboard (Figure 4).
This marks the first time it was possible to predict the expected condition
of transmission towers across a network
selection. This allows preventive and
replacement strategies to be planned and
costed across a long-term strategy.
lines and individual towers based on
their location and history, and use the
data to determine the best intervention
programs of painting or bar or tower
replacement. In addition, it enabled the
utility to generate the best strategies for
This was created through a care and
risk evaluation model. The model takes
into account all aspects of condition
Bringing in weather data has also been
of significant benefit, helping the utility
identify the relationship between cur-
rent transformers and the environment.
Another strategy involved predicting
the corrosion rate of the steel tower network to determine the life of a network
through the structures degradation.
The company required a strategy that
would enable them to identify problem
The Knowledge. The Equipment. The Soluton.
Start Saving Today!
Rent Test Equipment.
Advanced Test Equipment Rentals makes renting easy so you can
focus your energy elsewhere.
Rent: • Regenerative Grid Simulators • AC / DC Loads
• Programmable Power Supplies • Cable Fault Locators
• Relay Testers • and more...
Go to pgi.hotims.com for more information.